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fingers are different lengths to aid grip. when you place your hand around an object your fingers all become the same length. try holding your hand as if gripping a bar and you will see this effect. it is a possible trait of when humanlike ancestors could have climbed trees to either shelter or to collect food.
Wiki User
∙ 16y ago
Wiki User
∙ 15y agoGiven randomness, it is more probable that they would be, than that they would be the same size.
Even our arms are not exactly the same length, nor our legs.
There may well have been an advantage to having different lengths (and thicknesses) as this would have made grasping easier, and allowed for finer control of things being held/worked with. Answer: The article at the appended link relates the construction of the hand to evolution in that early hominids with fingers approaching our present configuration could use clubs and rocks to better effect in hunting and overcoming opponents. These extra calories from hunting and breeding success from being the best fed and "boss" of the tribe lead to the preservation of the genes leading to our present hands. Interestingly enough chimps have similar hands, but the fingers have been oriented to hanging from tree limbs and are in different length ratios from ours.
Wiki User
∙ 15y agoBecause in the deep dim past the creature that man evolved from walked on all fours, in other words hand were feet. Feet were destined for balance and forward movement. the hands eventually ceased to be used for walking on and as time wore on changed into a shape that is more usefully to us. but the BASIC shape and skeletal setup in the foot and hand have stayed the same.
Wiki User
∙ 15y agoTo allow you to grasp and hold onto items.
Wiki User
∙ 7y agobecause it has longer bones
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